How to use Transistors like a Switch Bipolar transistorsare generally a three lead active electronic component which fundamentally work as a switch for either switching ON or switching OFF power to an external load or an associated electronic stage of the circuit. A classic example can be seen be...
Latches function well and are used frequently in alarm circuits. If triggered once, the sirens will flash indefinitely or the buzzer will sound indefinitely until someone manually removed the power. In this circuit, we will use 2 transistors to form a latch. These are the BC547 transistor an...
In this case, the averaged applied power is 0.153W and Collector-loss is 0.5W (Recommended land : glass epoxy circuit board), so that the use of this TR under the ambient temperature of 25 deg. is OK. (In the strict sense, Pc should differ depending on the difference of heat dissipati...
As a transistor switch, it operates in two regions and those are Saturation Region (fully-ON) and the Cut-off Region (fully-OFF). The transistor as a switch circuit diagram is Transistor as a Switch Both the types NPN and PNP transistors can be operated as switches. Few of the ...
So, in this circuit, it's very simple, we demonstrate how to connect a power transformer so that we can have it operating in a circuit. Components Needed Power Transformer AC Voltage Source In this circuit, we will use a step-down transformer. ...
Use isopropyl alcohol and a lint-free cloth to gently wipe the affected areas. Ensure the board is completely dry before reconnecting. How to Clean Circuit Board Affected by Faulty Components? Circuit boards affected by faulty components, such as resistors, capacitors, transistors, and integrated c...
Make a drawing of the top of the circuit board. Show the positions of the capacitors, integrated circuits, resistors, transistors and other components. Review it to make sure everything is included. Step 2 Draw up a parts list. Label all the components on the drawing by the first letter ...
Mounting over a common heatsink will ensure quick and uniform sharing of heat and eliminating the dreaded thermal runaway situation. Moreover since the collectors of the transistors are supposed to be in parallel and joined with each other, the use of mica isolators no longer become essential an...
Transistors, whether they're BJTs or MOSFETs, can exist in two configurations: positively doped, or negatively doped. So for each of these types of transistor, there are at least two ways to draw it. Bipolar Junction Transistors (BJTs) ...
terminal controls the current flow through the others. They function primarily as switches and amplifiers. Bipolar transistors are the most popular type. They have three layers with a lead attached to each one. The middle layer is the base, and the other two are called the emitter and the ...